PT-2025-38546 · Unknown+5 · Batman-Adv+5
Published
2025-09-19
·
Updated
2026-05-07
·
CVE-2025-39839
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The
batadv nc skb decode packet() function in the batman-adv module does not properly validate the coded len variable, potentially leading to out-of-bounds read and write issues during network-coding decode operations. The function trusts coded len and only checks it against skb->len, without verifying the source skb length. This can occur when XOR operations start at sizeof(struct batadv unicast packet), reducing payload headroom.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Memory Corruption
Out of bounds Read
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Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Suse
Ubuntu
Batman-Adv